Interactions on record — worth a quick check against your medications. Based on 2 of 3 ingredients. Check your meds →
Dietary supplement

Furosap XT Ingredients & Drug Interactions

by Furosap XT

Furosap XT label
See full label image
Capsule Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Furosap XT against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Furosap XT is a dietary supplement by Furosap XT with 3 active ingredients. Its ingredients are commonly taken for flavoring and culinary use, digestive complaints like bloating and indigestion, boosting absorption of other supplements.Based on those ingredients, 1,142 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Bioperine Black Pepper Fruit Extract, Furosap. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Furosap XT by Furosap XT

Ask about any prescription or over-the-counter medication and we check it for interactions with Furosap XT by Furosap XT — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Furosap XT by Furosap XT

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 30, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 3 of its 3 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

Furosap XT contains three active ingredients. Bioperine Black Pepper Fruit Extract is a concentrated form of black pepper that supplies piperine, a compound that may enhance how your body absorbs certain nutrients and medications.

Furosap is a fenugreek seed extract—fenugreek is a plant long used in traditional medicine, particularly for blood sugar control and lactation support. The third ingredient is AstraGin, for which we hold no interaction data.

The product also contains inactive ingredients (fillers and capsule materials): vegetable cellulose, titanium dioxide, dicalcium phosphate, magnesium stearate, and silica.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: natural testosterone booster for sexual health and vitality.
  • We looked for evidence on: Athletic performance, Fatigue, Male infertility, Muscle strength, Sexual desire, Sexual dysfunction — and 3 related terms.
  • The strongest evidence on file: Fenugreek is rated "Possibly Effective" for Sexual dysfunction (Natural Medicines).
  • Also on file: Fenugreek is rated "Insufficient Reliable Evidence To Rate" for Athletic performance, Muscle strength, Male infertility.
  • Also on file: Black Pepper is rated "Insufficient Reliable Evidence To Rate" for Athletic performance, Fatigue, Sexual desire.

The evidence for black pepper's benefit in treating allergic rhinitis, asthma, athletic performance, headache, depression, and diarrhea is insufficient—we don't have reliable data to rate whether it works for these uses. For fenugreek, the picture is clearer: it's possibly effective for sexual dysfunction, dysmenorrhea (period pain), and diabetes.

The data on fenugreek shows it can reduce fasting blood sugar and the two-hour rise after meals in people with type 2 diabetes.

The evidence, ingredient by ingredient Black Pepper Fenugreek

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Black pepper from food is generally well tolerated, but concentrated supplements should be used more cautiously—safety data at supplement strength is limited. The most common side effects are burning aftertaste, indigestion, and reduced taste perception when taken by mouth.

Rarely, allergic reactions can occur in sensitive people. Fenugreek is also generally well tolerated in food amounts, though supplement doses may cause abdominal pain, bloating, diarrhea, indigestion, gas, nausea, or low blood sugar.

Severe allergic reactions including facial swelling, breathing difficulty, and anaphylaxis are rare but possible. Pregnancy safety is mixed.

Black pepper is likely safe in pregnancy, though one safety rating flags it as possibly unsafe—discuss with your doctor before taking. Fenugreek is likely unsafe in pregnancy because supplement amounts may affect the uterus; food amounts are different from medicinal doses.

For breastfeeding, black pepper is likely safe and fenugreek is possibly safe and is often used to boost milk supply, but evidence is limited—talk it over with your healthcare provider first.

Side effects, ingredient by ingredient Black Pepper Fenugreek

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 2 of the 2 matched ingredients can interact with medications — Fenugreek, Black Pepper.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; diabetes medications; lithium.
  • For scale: 1,143 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking Furosap XT, check with your doctor or pharmacist if you take heart medications (especially propranolol or metoprolol), seizure medications (especially phenytoin), blood thinners or antiplatelet drugs (warfarin, clopidogrel, aspirin), blood sugar medications, breathing medications (theophylline), antiretroviral drugs (nevirapine), the antibiotic rifampin, sildenafil for erectile dysfunction, or atorvastatin for cholesterol. Black pepper and fenugreek may affect how these work.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Furosap XT is a combination of black pepper extract and fenugreek seed extract, traditionally used to support blood sugar control and sexual function. Because black pepper may raise blood levels of heart, seizure, and antibiotic medications, and fenugreek may interact with blood thinners and diabetes drugs, you'll need to check your specific prescriptions before taking this.

Talk with your doctor or pharmacist about whether this product fits your health profile and medications.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 2 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jun 16, 2022.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Furosap XT, straight from the product label.

Brand Furosap XT
Barcode (UPC) 850008039690
Net contents 30 Veggie Capsule(s)
Market status On market
Date entered into DSLD Jun 16, 2022
DSLD ID 266080
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Women (not pregnant or lactating), Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Furosap XT by Furosap XT, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Vegetable Capsule(s)
Maximum serving Sizes:
1 Vegetable Capsule(s)
Servings per container
30
UPC/BARCODE
850008039690
IngredientAmount% DV
Bioperine Black Pepper Fruit Extract10 mg--
Furosap500 mg--
AstraGin25 mg--

Other ingredients: Vegetable Cellulose, Titanium Dioxide, Dicalcium Phosphate, Magnesium Stearate, Silica

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formulation

Natural testosterone booster Vitality, stamina, sexual health, & libido Furosap is a specialized patented clinically researched Fenugreek Extract standardized to contain a min. 20% Protodioscin and has been shown to support increases in both free and total testosterone levels and is commonly used to support sexual health & libido, overall energy & vitality, lean muscle & strength, improved sense of well-being, & more.

Fusosap XT Highlights/Supports: Natural Testosterone Booster Increases in free & total testosterone Sexual health & libido Vitality, stamina, & energy Improved sense of well-being Lean muscle & strength Fat loss & improved body-composition

Ultra-potent Fenugreek extract std. to a min 20% Protodioscin

Allergen Information: Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish, shellfish, or tree nut ingredients.

Formula

Ultra-potent 20% protodioscin content 2 clinically researched absorption enhancers 500mg. clinically researched dose per capsule

500mg Furosap 25mg AstraGin 10mg Bioperine

General Statements

Furosap XT capsules can be stacked with SNS Anabolic XT, KSM-66 caps, Tongkat Ali XT, Spilanthes XT, Bulbine Caps, Inhibit-E, Stress & Anxiety Support, or a wide variety of other SNS products for improved synergistic results.

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Precautions

To report a serious adverse event, or obtain product information, contact Serious Nutrition Solutions, LLC. at 1-877-799-8778.

Allergen Information: Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish, shellfish, or tree nut ingredients. Produced in a GMP facility that may process other ingredients containing these allergens.

Warning: This product is intended for healthy adults over 18 years of age.

Do not use this product if you are pregnant or nursing. Consult your physician before using this or any dietary supplement, especially if you are taking any medication or suffer from any health condition(s).

Keep stored in a cool, dry place away from children and animals

Seals/Symbols

GMP Good Manufacturing Practices Product

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Suggested Use: As a dietary supplement, take one (1) capsule per day.

Storage

Keep stored in a cool, dry place away from children and animals.

Brand IP Statement(s)

Furosap is a registered TM of Cepham Inc. Furosap is covered by US patent 8754205 AstraGin is a registered trademark of Nuliv Science USA Inc BioPerine is a registered trademark of Sabinsa Corporation

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Furosap XT by Furosap XT label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Furosap XT label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Furosap XT by Furosap XT

These are the 3 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Vegetable Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Bioperine Black Pepper Fruit Extract

Interacts with
1,019 drugs
10 mg per serving Form: Piperine

Black pepper is a common kitchen spice that is generally safe in the amounts used in food. Its extract, piperine, is mostly added to supplements to he...

Bioperine Black Pepper Fruit Extract monograph & interactions

Furosap

Interacts with
389 drugs
500 mg per serving Form: Fenugreek Seed Extract

Fenugreek is a common kitchen spice that is also taken as a supplement, mainly for blood sugar, cholesterol, and to support breast milk production. So...

Furosap monograph & interactions

AstraGin

25 mg per serving Form: Astragalus root extract, Panax notoginseng root extract

Other (inactive) ingredients: Vegetable Cellulose, Titanium Dioxide, Dicalcium Phosphate, Magnesium Stearate, Silica. These complete the product’s ingredient list but are not active constituents.

Interaction report

Furosap XT by Furosap XT Drug Interactions

Want to check YOUR meds against Furosap XT?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
1,142Drugs
976 Moderate 166 Minor

Ingredients driving the most interactions

Bioperine Black Pepper Fruit Extract 1,019
Furosap 389

Individual Drug Interactions

The ingredients in Furosap XT interact with 1,142 drugs. Click any drug to see the details.

2 of the 3 ingredients in Furosap XT interact with drugs. Each result below shows which ingredient is responsible. Bioperine Black Pepper Fruit Extract Furosap

Each ingredient & the kinds of drugs it affects

For each ingredient in Furosap XT with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Bioperine Black Pepper Fruit Extract17 drug types · 1,019 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, black pepper might increase the risk of bleeding when taken with antiplatelet or anticoagulant drugs.
In vitro research shows that piperine, a constituent of black pepper, seems to inhibit platelet aggregation. This has not been reported in humans.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, black pepper might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Animal research shows that piperine, a constituent of black pepper, can reduce blood glucose levels. Monitor blood glucose levels closely. Dose adjustments might be necessary.

Likelihood Possible Evidence D
Atorvastatin (Lipitor)

Theoretically, black pepper might increase blood levels of atorvastatin.
Animal research shows that taking piperine, a constituent of black pepper, 35 mg/kg can increase the maximum serum concentration of atorvastatin three-fold. This has not been reported in humans.

Likelihood Possible Evidence D
Cyclosporine (Neoral, Sandimmune)

Theoretically, black pepper might increase the effects and side effects of cyclosporine.
In vitro research shows that piperine, a constituent of black pepper, increases the bioavailability of cyclosporine. This has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, black pepper might increase levels of drugs metabolized by CYP2D6.
In vitro research suggests that some constituents of black pepper inhibit CYP2D6. This has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, black pepper might increase levels of drugs metabolized by CYP3A4.
In vitro research and pharmacokinetic simulation data suggest that piperine, a constituent of black pepper, as well as the pepper fruit seem to inhibit CYP3A4. This has not been reported in humans.

Likelihood Possible Evidence D
Lithium

Theoretically, black pepper might increase blood levels of lithium due to its diuretic effects. The dose of lithium might need to be reduced.
Black pepper is thought to have diuretic properties.

Likelihood Probable Evidence D
Nevirapine (Viramune)

Black pepper might increase blood levels of nevirapine.
Clinical research shows that piperine, a constituent of black pepper, increases the plasma concentration of nevirapine. However, no adverse effects were observed in this study.

Likelihood Probable Evidence D
P-Glycoprotein Substrates

Theoretically, black pepper might increase levels of P-glycoprotein substrates.
In vitro research shows that piperine, a constituent of black pepper, seems to inhibit P-glycoprotein.

Likelihood Possible Evidence D
Pentobarbital (Nembutal)

Theoretically, black pepper might increase the sedative effects of pentobarbital.
Animal research shows that piperine, a constituent of black pepper, increases pentobarbital-induced sleeping time.

Likelihood Possible Evidence D
Phenytoin (Dilantin)

Black pepper might increase blood levels of phenytoin.
Clinical research shows that piperine, a constituent of black pepper, seems to increase absorption, slow elimination, and increase levels of phenytoin. Taking a single dose of black pepper 1 gram along with phenytoin seems to double the serum concentration of phenytoin. Consuming a soup with black pepper providing piperine 44 mg/200 mL of soup along with phenytoin also seems to increase phenytoin levels when compared with consuming the same soup without black pepper.

Likelihood Possible Evidence B
Propranolol (Inderal)

Black pepper might increase blood levels of propranolol.
Clinical research shows that piperine, a constituent of black pepper, seems to increase absorption and slow elimination of propranolol.

Likelihood Possible Evidence B
Rifampin (Rifadin)

Black pepper might increase blood levels of rifampin.
Clinical research shows that piperine, a constituent of black pepper, seems to increase absorption and serum levels of rifampin.

Likelihood Possible Evidence B
Theophylline

Black pepper might increase blood levels of theophylline.
Clinical research shows that piperine, a constituent of black pepper, seems to increase absorption and slow elimination of theophylline.

Likelihood Possible Evidence D
Amoxicillin (Amoxil, Trimox)

Theoretically, black pepper might increase the effects and side effects of amoxicillin.
Animal research shows that taking piperine, a constituent of black pepper, with amoxicillin increases plasma levels of amoxicillin. This has not been reported in humans.

Likelihood Possible Evidence D
Carbamazepine (Tegretol)

Theoretically, black pepper might increase blood levels of carbamazepine, potentially increasing the effects and side effects of carbamazepine.
One clinical study in patients taking carbamazepine 300 mg or 500 mg twice daily shows that taking a single 20 mg dose of purified piperine, a constituent of black pepper, increases carbamazepine levels. Piperine may increase carbamazepine absorption by increasing blood flow to the GI tract, increasing the surface area of the small intestine, or inhibiting cytochrome P450 3A4 (CYP3A4) in the gut wall. Absorption was significantly increased by 7-10 mcg/mL/hour. The time to eliminate carbamazepine was also increased by 4-8 hours. Although carbamazepine levels were increased, this did not appear to increase side effects. In vitro research also shows that piperine can increase carbamazepine levels by 11% in a time-dependent manner.

Likelihood Possible Evidence B
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, black pepper might decrease levels and clinical effects of drugs metabolized by CYP1A2.
In vitro research suggests that black pepper induces CYP1A2. This has not been reported in humans.

Likelihood Possible Evidence D
Bioperine Black Pepper Fruit Extract full monograph & interactions

Furosap9 drug types · 389 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, fenugreek might have additive effects when used with anticoagulant or antiplatelet drugs.
Some of the constituents in fenugreek have antiplatelet effects in animal and in vitro research. However, common fenugreek products might not contain sufficient concentrations of these constituents for clinical effects. A clinical study in patients with coronary artery disease or diabetes shows that taking fenugreek seed powder 2.5 grams twice daily for 3 months does not affect platelet aggregation, fibrinolytic activity, or fibrinogen levels .

Likelihood Unlikely Evidence B
Antidiabetes Drugs

Theoretically, fenugreek seed might have additive hypoglycemic effects when used with antidiabetes drugs.
Clinical research shows that fenugreek seed can reduce fasting blood glucose and 2-hour postprandial glucose levels in adults with type 2 diabetes.

Likelihood Probable Evidence B
Clopidogrel (Plavix)

Theoretically, fenugreek seed might alter the clinical effects of clopidogrel by inhibiting its conversion to the active form.
Animal research shows that fenugreek seed 200 mg/kg daily for 14 days increases the maximum serum concentration of clopidogrel by 21%. It is unclear how this affects the pharmacokinetics of the active metabolite of clopidogrel; however, this study found that concomitant use of fenugreek seed and clopidogrel prolonged bleeding time by an additional 11%.

Likelihood Possible Evidence D
Metoprolol (Toprol)

Theoretically, fenugreek seed might have additive hypotensive effects when used with metoprolol.
Animal research shows that fenugreek seed 300 mg/kg daily for 2 weeks decreases systolic and diastolic blood pressure by 9% and 11%, respectively, when administered alone, and by 15% and 22%, respectively, when given with metoprolol 10 mg/kg.

Likelihood Probable Evidence B
Phenytoin (Dilantin)

Theoretically, fenugreek might decrease plasma levels of phenytoin.
Animal research shows that taking fenugreek seeds for 1 week decreases maximum concentrations and the area under the curve of a single dose of phenytoin by 44% and 72%, respectively. This seems to be related to increased clearance. So far, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Sildenafil (Viagra)

Theoretically, concurrent use of sildenafil and fenugreek might reduce levels and therapeutic effects of sildenafil.
Animal research shows that taking fenugreek seeds for 1 week reduces maximum concentrations and the area under the curve of a single dose of sildenafil by 27% and 48%, respectively. So far, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Theophylline

Theoretically, fenugreek may reduce the levels and clinical effects of theophylline.
Animal research shows that fenugreek 50 grams daily for 7 days reduces the maximum serum concentration (Cmax) of theophylline by 28% and the area under the plasma drug concentration-time curve (AUC) by 22%.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, fenugreek might have additive effects with warfarin and increase the international normalized ratio (INR).
Some fenugreek constituents have antiplatelet effects, although these might not be present in concentrations that are clinically significant. In one case report, a patient taking warfarin experienced an increased INR when starting to take fenugreek in combination with boldo.

Likelihood Possible Evidence D
Antihypertensive Drugs

Fenugreek may also have an additive effect on blood pressure-lowering medications. Studies on animals have shown that fenugreek seed can decrease both systolic and diastolic blood pressure by up to 22% when combined with metoprolol. Therefore, it is essential to monitor your blood pressure regularly if you are taking fenugreek and metoprolol together or any other antihypertensive drugs.

Likelihood Possible Evidence C
Furosap full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Furosap XT, from the product label.

Furosap XT

See all Furosap XT products
Name
Serious Nutrition Solutions, LLC
City
Danville
State
VA
ZipCode
24540
Phone Number
877-799-8778
Web Address
www.SeriousNutritionSolutions.com
Pharmacist Counseling Corner

Furosap XT by Furosap XT: Common Questions

Does Furosap XT by Furosap XT interact with any medications?
Yes. Based on its ingredients, Furosap XT has a known interaction with 1,142 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Furosap XT contains 3 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take this if I'm pregnant?
The safety data is mixed. Black pepper is likely safe in pregnancy, but one rating flags it as possibly unsafe. Fenugreek is likely unsafe at medicinal doses during pregnancy because it may affect the uterus—though food amounts are different. There isn't enough data to know for certain, so talk with your doctor or pharmacist for personalized advice before taking it.
Can I take this while breastfeeding?
Black pepper is likely safe while breastfeeding. Fenugreek is possibly safe and is commonly used to support milk supply, but the evidence is limited. Discuss it with your doctor or pharmacist first to make sure it's right for you.
What is fenugreek used for in this product?
Fenugreek is included for its possible effects on sexual function, period pain, and blood sugar control. The research shows it can lower fasting blood sugar in people with type 2 diabetes. It's also traditionally used to support milk supply during breastfeeding.
What are the most common side effects?
Black pepper may cause a burning aftertaste, indigestion, or reduced taste perception. Fenugreek commonly causes abdominal pain, bloating, diarrhea, indigestion, gas, or nausea. Both are generally well tolerated at food amounts, but supplement doses are more likely to cause these effects.
Does this product have filler ingredients?
Yes. Besides the active ingredients, it contains vegetable cellulose, titanium dioxide, dicalcium phosphate, magnesium stearate, and silica—these are inactive ingredients used to form and stabilize the capsule.
Is there any evidence black pepper helps with allergies or asthma?
The evidence isn't established in our data. We don't have reliable information to say whether black pepper works for allergies, asthma, headaches, depression, or diarrhea.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Furosap XT label
Go deeper

The Full Monographs Behind Furosap XT’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Black Pepper

Interacts with 1,019 drugs

Black pepper is a common kitchen spice that is generally safe in the amounts used in food. Its extract, piperine, is mostly added to supplements to help the body absorb other ingredients (li...

Read the full Black Pepper monograph → Herb & supplement monograph

Fenugreek

Interacts with 389 drugs

Fenugreek is a common kitchen spice that is also taken as a supplement, mainly for blood sugar, cholesterol, and to support breast milk production. Some early research is encouraging for blo...

Read the full Fenugreek monograph →
Sources

Sources & How We Checked

Furosap XT's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 59 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Black Pepper 29 references
  1. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
  2. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  3. Bano G, Amla V, Raina RK, et al. The effect of piperine on pharmacokinetics of phenytoin in healthy volunteers. Planta Med 1987;53:568-9. PubMed
  4. Bano G, et al. Effect of piperine on bioavailability and pharmacokinetics of propranolol and theophylline in healthy volunteers. Eur J Clin Pharmacol 1991;41;615-7. PubMed
  5. Cohle SD, Trestrail JD III, Graham MA, et al. Fatal pepper aspiration. Am J Dis Child 1988;142:633-6. PubMed
  6. Bhardwaj RK, Glaeser H, Becquemont L, et al. Piperine, a major constituent of black pepper, inhibits human P-glycoprotein and CYP3A4. J Pharmacol Exp Ther 2002;302:645-50. PubMed
  7. Velpandian T, Jasuja R, Bhardwaj RK, et al. Piperine in food: interference in the pharmacokinetics of phenytoin. Eur J Drug Metab Pharmacokinet 2001;26:241-7. PubMed
  8. Pattanaik S, Hota D, Prabhakar S, et al. Pharmacokinetic interaction of a single dose of piperine with steady-state carbamazepine in epilepsy patients. Phytother Res 2009;23:1281-6.
  9. Munakata, M., Kobayashi, K., Niisato-Nezu, J., Tanaka, S., Kakisaka, Y., Ebihara, T., Ebihara, S., Haginoya, K., Tsuchiya, S., and Onuma, A. Olfactory stimulation using black pepper oil facilitates oral feeding in pediatric patients receiving long-term en
  10. Myers, B. M., Smith, J. L., and Graham, D. Y. Effect of red pepper and black pepper on the stomach. Am J Gastroenterol 1987;82(3):211-214.
  11. Raghavendra, R. H. and Naidu, K. A. Spice active principles as the inhibitors of human platelet aggregation and thromboxane biosynthesis. Prostaglandins Leukot.Essent.Fatty Acids 2009;81(1):73-78. PubMed
  12. Subehan, Usia, T., Kadota, S., and Tezuka, Y. Mechanism-based inhibition of human liver microsomal cytochrome P450 2D6 (CYP2D6) by alkamides of Piper nigrum. Planta Med 2006;72(6):527-532.
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Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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